Astragalus lentiginosus var. platyphyllidius |
|
---|---|
broad-leaf freckled milkvetch, broad-leaf milkvetch |
|
Habit | Plants perennial, (7–)10–30(–35) cm. |
Leaves | (4–)5–11 cm; leaflets (7–)11–17(or 19), blades usually broadly obovate-cuneate, elliptic, or suborbiculate, rarely rhombic-elliptic, (4–)7–20 mm, apex usually obtuse, retuse, truncate, or apiculate, rarely acute. |
Racemes | shortly and loosely (5–)7–15-flowered, flowering from near or proximal to middle nodes, short and compact in fruit; axis little elongating, 1–3.5 cm in fruit. |
Peduncles | 1–5 cm. |
Flowers | (12.6–)14–21.4 mm; calyx (8–)8.5–12.5 mm, tube (5–)5.5–8(–9) mm, lobes 2.4–5 mm; corolla usually whitish, rarely purple. |
Legumes | variable in length, outline, and curvature, pale green or purple-speckled becoming stramineous or brownish, plumply ovoid or narrowly lanceoloid-ellipsoid, (13–)15–40(–48) × 7–14 mm, ± bilocular, strongly or slightly inflated, ± fleshy becoming leathery or stiffly papery, usually glabrous, sometimes minutely strigulose; beak deltoid or lanceolate-acuminate, 5–15 mm, unilocular. |
Seeds | (21–)24–32(–38). |
Astragalus lentiginosus var. platyphyllidius |
|
Phenology | Flowering May–Jul. |
Habitat | Arid plains, hillsides, and valley floors, on basalt, with sagebrush. |
Elevation | 600–1900(–2100) m. (2000–6200(–6900) ft.) |
Distribution |
CA; CO; ID; NV; OR; UT; WY |
Discussion | Variety platyphyllidius is dispersed widely from eastern Oregon and northeastern California, across southern Idaho into western Wyoming, northeastern Nevada, and barely into northern Utah and northwestern Colorado. It is apparently common only locally, distinguished by its typically pale flowers and thick-textured fruits (approximate length of two times width or less). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 11. |
Parent taxa | |
Sibling taxa | |
Synonyms | Cystium platyphyllidium, A. lentiginosus var. cornutus, A. merrillii, C. cornutum, C. merrillii |
Name authority | (Rydberg) M. Peck: Man. Pl. Oregon, 449. (1941) — (as platyphyllidium) |
Web links |